During the recent Presidential campaign, many people have asked, “Is Donald Trump a narcissist?” Many people have suggested that he qualifies for a psychiatric diagnosis of narcissistic personality disorder. However, American psychiatrists cannot weigh in on this issue. They are not supposed to offer diagnoses of people whom they have not formally evaluated. Yet even if psychiatrists could render an opinion about Trump, they cannot give him a diagnosis of a personality disorder unless his behavior is unacceptable to the people of his culture.